Free Printable Year 9

1.

As a basic numeral 1.04 x 10^-3 should be written as:

a)

1.04

b)

1040

c)

0.00104

d)

0.000104

e)

1.12

2.

Rounding 0.02365 to 3 significant figures is:

a)

0.024

b)

0.0237

c)

0.02

d)

0.0236

e)

0.023

3.

The answer to $\frac{20y^4z^3}{4y^3z^3}$ is:

a)

10y

b)

5y

c)

4y

d)

5y²z

e)

4y²z

4.

If 12% is equal to 48 then the original amount is:

a)

4

b)

40

c)

400

d)

120

e)

198

5.

A bike normally sells for a retail price of $900. If it is reduced by a discount of 20%, what is the new retail price?

a)

$180

b)

$700

c)

$720

d)

$680

e)

$1080

6.

When expanded and simplified 4(6-2x)-8 becomes:

a)

16-8x

b)

32-8x

c)

24-10x

d)

16-2x

e)

32-2x

7.

4³ is equivalent to:

a)

1

b)

12

c)

8

d)

16

e)

64

8.

Change from standard form to scientific notation: 12,000,000

a)

12.0 x 10⁷

b)

0.12 x 10⁷

c)

1.2 x 10⁶

d)

1.2 x 10⁷

9.

What is 720 as a product of its prime factors?

a)

2⁴ x 3² x 5

b)

16 x 3³x 5

c)

2³ x 4² x 3

d)

2⁶x 7

10.

Find the HCF of 32 and 80.

a)

8

b)

16

c)

24

d)

32

11.

Find the LCM of 120 and 150.

a)

300

b)

360

c)

450

d)

600

12.

What is the cube root of 27?

a)

9

b)

3

c)

6

d)

0

13.

Which of the following is a perfect square number?

a)

9

b)

12

c)

15

d)

20

14.

¹⁄₂× ³ ⁄₄ =

a)

³⁄₈

b)

³⁄₄

c)

¹⁄₂

d)

¹⁄₄

15.

³⁄₇÷ ²⁄₅=

a)

⁶⁄₃₅

b)

¹⁵⁄₁₄

c)

¹⁴⁄₁₅

d)

¹⁄₇

16.

$\frac{2}{5}\times\frac{4}{7}$ Solve and simplify if necessary

a)

$\frac{8}{35}$

b)

$\frac{6}{35}$

c)

$\frac{8}{12}$

d)

$\frac{2}{3}$

17.

Decrease 500 by 30%

a)

470

b)

350

c)

499.70

d)

150

18.

A book is advertised as 20% off. If it cost $70 at the register, how much was it originally?

a)

$90

b)

$84

c)

$87.50

d)

$50

19.

Kate scored 54 out of 60 in her maths exam. What is this as a percent?

a)

0.9

b)

54%

c)

90%

d)

60%

20.

Increase $90 by 12%

a)

$10.80

b)

$102

c)

$100.80

d)

$90.12

Year 9 - revision

Total questions: 20

Worksheet time: 40mins

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